[pitivi] flatpak: Fix building with flatpak-builder > 0.10.2

[Thibault Saunier <tsaunier src gnome org>]

commit 643b9500f6dc729e12e2d8ba8c870599d3cf6332
Author: Thibault Saunier <tsaunier gnome org>
Date:   Tue Nov 7 11:43:50 2017 -0300

    flatpak: Fix building with flatpak-builder > 0.10.2
    
    Build will still fail with flatpak-builder 0.10.0 and
    0.10.1 there is nothing we can do about it

 build/flatpak/pitivi.template.json |    5 +++--
 1 files changed, 3 insertions(+), 2 deletions(-)
---
diff --git a/build/flatpak/pitivi.template.json b/build/flatpak/pitivi.template.json
index a15ce26..888c196 100644
--- a/build/flatpak/pitivi.template.json
+++ b/build/flatpak/pitivi.template.json
@@ -301,7 +301,7 @@
             "sources": [
                 {
                     "type": "git",
-                    "url": "https://git.ffmpeg.org/ffmpeg.git";,
+                    "url": "https://github.com/FFmpeg/FFmpeg.git";,
                     "branch": "6d7192bcb7bbab17dc194e8dbb56c208bced0a92" /* From submodule 
https://github.com/GStreamer/gst-libav/tree/master/gst-libs/ext */
                 }
             ]
@@ -420,7 +420,8 @@
                 {
                     "type": "git",
                     "branch": "master",
-                    "url": "git://anongit.freedesktop.org/gstreamer/gst-libav"
+                    "url": "git://anongit.freedesktop.org/gstreamer/gst-libav",
+                    "disable-shallow-clone": true
                 }
             ]
         },